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Byju's Answer
Standard VII
Mathematics
Area of a Circle
The length of...
Question
The length of minute hand of a clock is
500
mm.Find area swept by minute hand during
6.05
am to
6.40
am.
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Solution
we know that the minute hand covers
6
∘
per minute
For
35
minutes
θ
=
6
×
35
=
210
0
∴
area
=
210
360
×
π
×
(
500
)
2
m
m
2
=
7
π
6
×
2
π
×
π
×
0.5
×
0.5
m
2
=
7
12
π
×
0.25
m
2
=
7
π
48
m
2
=
0.4581
m
2
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